Axle shaft including an electromechanically or pneumatically actuated disc brake

Abstract

An axle shaft includes an electromechanically or pneumatically actuated disc brake, especially for a useful vehicle. The brake disc and the caliper can be displaced in relation to each other, and the caliper is fixed to the axle shaft on at least two fixing plates extending preferably from the axle shaft in different directions, at at least respectively one fixing point. The axle shaft is characterized by the arrangement, especially the orientation and/or embodiment, of the fixing plates, and the fixing points of the caliper or of an optional brake carrier on the fixing plates, which is selected in such a way that there is either no displacement of the fixing points on the fixing plates or a parallel displacement of the fixing points on both fixing plates perpendicularly to the brake disc.

1. A mounting arrangement for a disc brake, having a caliper and brake disc, on a vehicle axle, the disc brake being subject to forces tending to skew the caliper relative to the brake disc during operation, the mounting arrangement comprising:
 at least two fixing lugs operatively configured to extend radially from the vehicle axle in different directions, each lug providing a respective fixing point, wherein the respective fixing points secure a component of the disc brake to the two fixing lugs; 
 wherein at least one of the fixing lugs is oriented to extend radially at an angle relative to a plane of the brake disc, said angle of the at least one fixing lug and an orientation relative to the plane of the brake disc of the other fixing lug being operatively defined to arrange the fixing points at defined locations, wherein the defined locations of the fixing points allow the fixing lugs to substantially counteract the forces tending to skew the caliper relative to the brake disc during operation. 
 
     
     
       2. The mounting arrangement according to  claim 1 , wherein both fixing lugs are oriented at an angle relative to a plane of the brake disc. 
     
     
       3. The mounting arrangement according to  claim 1 , wherein the two fixing lugs are oriented at different angles relative to a plane of the brake disc. 
     
     
       4. The mounting arrangement according to  claim 1 , wherein the two fixing lugs are each oriented at an angle to a plane of the brake disc such that the orientations correspond to a direction of force vectors, which result from braking operations at the fixing points, wherein in each only a tensile load or a pressure load acts on the fixing lugs and the fixing lugs are substantially free of bending moments. 
     
     
       5. The mounting arrangement according to  claim 1 , wherein bending moments exerted on the two fixing lugs are of substantially equal magnitude due to the design and orientation of the fixing lugs and the fixing points, wherein the fixing points are displaced in parallel during braking operation. 
     
     
       6. The mounting arrangement according to  claim 1 , wherein the component of the disc brake is one of a caliper or carrier for the caliper. 
     
     
       7. A process for making a mounting arrangement for a disc brake having a caliper and a brake disc, the caliper being mounted to a vehicle axle via at least two fixing points, each fixing point being formed on a respective fixing lug which extends radially away from the vehicle axle in different directions, the method comprising the acts of:
 determining skewing forces which would occur during operation of the disc brake to cause skewing of the caliper relative to the brake disc; 
 determining an orientation of the fixing lugs extending radially from the axle shaft at an angle relative to a plane of the brake disc that will counteract the skewing forces based on a location of the fixing points; and 
 forming the mounting arrangement with the fixing lugs having the determined orientation.